[atlas] Running a probe behind a NAT66

Dear Roman,

> As also noted in my private E-Mail to Stephen, one issue highlighted here is
> the lack of notification about such issues with the probe. For instance I
> didn't notice that anything is wrong until almost a month later (and by then
> it was already difficult to pinpoint these issues to the configuration changes
> that I made earlier), as there is no E-Mail notification for probe connection
> flapping, only for 60+ minutes periods of disconnection. So perhaps it would
> be a good idea to consider adding more kinds of E-Mail notifications to Atlas
> in the future.

You can set a pretty aggressive (down to 10 minutes) notification
threshold on the probe status page. I do not recommend this in general,
since it's going to be way too noisy, but it may come handy if you're
testing something.

Regards,
Robert